Speaker box



FIG. 1 is a front view of a speaker box showing my new design;

FIG. 2 is a top view of a speaker box;

FIG. 3 is a side view thereof;

FIG. 4 is a further side view thereof; and,

FIG. 5 is a front view of a second embodiment of the design shown in FIG. 1. 

The ornamental design for a speaker box, as shown and described. 